在创建每个Account对象时，使用Account构造函数初始化名称实例变量。

public class Main

{

   public static void main(String[] args)

   { /* 来 自 时代Java - N o w  J a v a . c o m*/

      // create two Account objects

      Account account1 = new Account("James Bond");

      Account account2 = new Account("Michael Bates"); 


      // display initial value of name for each Account

      System.out.printf("account1 name is: %s%n", account1.getName());

      System.out.printf("account2 name is: %s%n", account2.getName());

   } 

}

class Account

{

   private String name; // instance variable


   // constructor initializes name with parameter name

   public Account(String name) // constructor name is class name /* 来自 N  o w  J a v a . c o m*/

   {                                                               

      this.name = name;

   }                                            


   // method to set the name

   public void se